Texas offensive lineman Connor Williams (55) during the second half of an NCAA college football game against San Jose State, Saturday, Sept. 9, 2017, in Austin, Texas. Texas won 56-0. (AP Photo/Eric Gay)

It looks like Texas will be without its top offensive lineman for quite a while.

Connor Williams, UT’s All-American left tackle, went down with a left knee injury during the Longhorns’ dramatic double-overtime road loss to No. 5 USC. After Williams underwent an MRI, Texas announced Sunday that Williams sprained both the MCL and PCL in his left knee while also tearing his meniscus. Williams will have arthroscopic surgery to repair the meniscus “in the next week to 10 days,” the school said in a release.

Williams, who was injured during the second quarter Saturday night, will be re-evaluated after surgery and a timetable for his possible return to the field this season will be determined at that time.

The loss of Williams, a junior, is a big one for the Longhorns, who were big underdogs but managed to battle the Trojans into double-overtime before losing 27-24. The 6-foot-6, 315-pound Williams has started every game he has appeared in since stepping on campus in 2015. He was a Freshman All-American and honorable mention All-Big 12 selection in 2015 before emerging as a consensus All-American last fall.

With Williams out, senior Tristan Nickelson slid over from right to left tackle with sophomore Denzel Okafor filling in for Nickelson on the right side. It remains to be seen what combination the Longhorns go with in Williams’ absence.

Texas, now 1-2, is off next weekend before returning to action on the road at Iowa State on Thursday, Sept. 28 in its Big 12 opener.

– – – – – – –

Sam Cooper is a writer for the Yahoo Sports blogs. Have a tip? Email him or follow him on Twitter!